| County | Site | Units | 24-Hour | Hour Of Day | 1 Hour | Hour Of Day |
|---|---|---|---|---|---|---|
| Outagamie | Appleton | µg/m³ | 7.1 | 05 PM | 6.4 | 10 PM |
| Ashland | Bad River Tribal School | µg/m³ | 2.5 | 01 PM | 3.3 | 01 AM |
| Kenosha | Chiwaukee Prairie | µg/m³ | 5.4 | 02 PM | 12.5 | 12 PM |
| Sauk | Devils Lake | µg/m³ | 3.2 | 01 AM | 3.9 | 11 PM |
| Eau Claire | Eau Claire DOT Sign Shop | µg/m³ | 3.4 | 09 AM | 4.7 | 01 AM |
| Brown | Green Bay East High | µg/m³ | 4.8 | 04 PM | 7.2 | 01 AM |
| Ozaukee | Harrington Beach Park | µg/m³ | 3.4 | 03 PM | 4.6 | 02 AM |
| Dodge | Horicon Wildlife Area | µg/m³ | 4.1 | 10 PM | 5.7 | 10 PM |
| Marathon | Lake Dubay | µg/m³ | 3.3 | 08 AM | 4.2 | 08 PM |
| Dane | Madison East | µg/m³ | 5.5 | 07 AM | 12.8 | 03 AM |
| Dane | Madison University Ave. Well #6 | µg/m³ | 5.7 | 04 AM | 9.8 | 09 PM |
| Milwaukee | Milwaukee-16th St. Health Center | µg/m³ | 6.6 | 09 PM | 11.9 | 09 PM |
| Milwaukee | Milwaukee-College Ave NR | µg/m³ | 6 | 07 PM | 10.6 | 02 AM |
| Forest | Potawatomi | µg/m³ | 2.3 | 12 PM | 3.1 | 03 AM |
| Grant | Potosi | µg/m³ | 4.9 | 04 AM | 17.9 | 10 PM |
| Waukesha | Waukesha-Cleveland Ave. | µg/m³ | 5.5 | 09 PM | 8.4 | 10 PM |